Connector for electrical conductors



Dec. 13, 1960 D. J. MICHALS 2,964,726

CONNECTOR FOR ELECTRICAL CONDUCTORS Filed Jan. 6, 1956 Dean Mic/z 6/5 ATTORAQEY 2,964,725 Patented Dec. 13, 1960 ice CONNECTOR FOR ELECTRICAL CONDUCTORS Dean J. Michals, 45 W. Warren Ave., Youngstown, Ohio Filed Jan. 6, 1956, Ser. No. 557,775

1 Claim. (Cl. 339149) This invention relates to connection means for electrical conductors and more particularly to connection means incorporating structure for obtaining improved mechanical and electrical connection of electrical conductors.

The principal object of the invention is the provision of an improved form of connectors for electrical conductors.

A further object of the invention is the provision of connectors for electrical conductors enclosed in an insulating body member and usable for establishing electrical and mechanical connection between wires, cables and the like without requiring additional insulating material at the point of connection.

A still further object of the invention is the provision of connectors for electrical conductors whereby one, two or more electrical conductors may be connected together.

The connectors for electrical conductors disclosed herein comprise an improvement in the art relating to connection means and particularly with respect to connectors operative without additional insulating material being applied to the area of connection.

The connectors disclosed herein may be utilized singly or in multiple units and, as such, used for connecting one, two or more electrical conductors together. Variations of the same form of connector disclosed herein may be employed in a common conductor body to permit the use of the device in junction blocks for electrical conductors and the like.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details "of construction hereinafter described and clai rhed,.it being the intention to cover all changes and modifications of the example of the invention herein chosen for purposesfof the disclosure, which do not constitute' departures from the spirit and scope of the invention.

The invention is illustrated in the accompanying drawing, wherein:

Figure 1 is a perspective view of a connector formed in accordance with the invention.

Figure 2 is a vertical section on the center line of the connector shown in Figure 1 and illustrating a pair of with a dielectric plug 13. A metalic body member 14' having a cylindrical portion is positioned in the vertical passageway 12 above the plug 13 and below a shoulder 15 formed therein so as to be completely contained within the block 10.

The metalic body member 14 has a transverse bore 16 therein and a vertical bore 17 which is internally threaded and adapted to receive a threaded plug 18, the upper end of which is provided with a transverse slot 19 so that it may be rotated by a screw driver. The lower outer peripheral portion of the metalic body member 14 is slightly enlarged in diameter and knurled as at 20 so that the cylinder 14 is self-retaining in position in the insulating block 10. It will be observed that the transverse bore 16 is in alignment with the transverse passageway 11 in the insulating block 10.

:In Figure 2 of the drawings a pair of electrical conductors A and B may be seen positioned in oppositely disposed relation in the transverse bore 16 with the plug 18 turned downwardly thereagainst so as to bend and force the conductors A and B into matching closely engaging mechanical and electrical relation and thereby achieve the electrical connection desired.

In Figures 3 and 4, the same metalic body members 14 may be seen to be installed in vertical openings 21 in an annular shaped block 22 of insulating material, the vertical openings 21 being circumferentially spaced with respect to one another and positioned vertically in the annular shaped block 22.

Horizontally disposed passageways 23-23 extend radially through the annular block 22 and align with the transverse bore 16 in each of the metalic body members 14, as heretofore described. Secondary horizontally disposed passageways 2424 enable electrical conductors to be brought into the center area of the annular block 22 of insulating material.

It will thus be seen that the invention disclosed herein meets the several objects of the invention.

Having thus described by invention, what I claim is:

A connector for electrical conductors comprising an insulating body member having a vertical passageway therethrough and a horizontal passageway therethrough, said passageways being in cross communicating position in said insulating body member, a metallic body member having a cylindrical portion disposed in said vertical passageway with a screw threadably engaged in said cylindrical portion, said cylindrical portion having a transverse bore therethrough in axial alignment with said horizontal passageway in said insulating body member, said screw being adapted to be moved across said transverse bore when electrical conductors to be connected are positioned therein so as to be distorted by said screw, an insulating plug disposed in the vertical passageway in which said metallic body member is positioned and in the opposite end thereof in relation to said screw and on the opposite outer side of said metallic body member to insulate said member, said insulating plug lying on the opposite side of said transverse bore relative to said screw, the wall of said transverse bore opposite said screw forming a member against which said electrical conductors positioned in said transverse bore will become engaged when they are distorted by said screw in said cylindrical portion.

References Cited in the file of this patent UNITED STATES PATENTS 446,871 Lieb Feb. 24, 1891 1,000,101 Marx Aug. 8, 1911 1,559,668 Brown et a1. Nov. 3, 1925 1,678,733 Kromann July 31, 1928 2,049,105 Clarke July 28, 1936 2,178,092 Werner Oct. 31, 1939 2,387,630 Weakley Oct. 23, 1945 2,455,885 Thuerer Dec. 7, 1948 2,567,783 Richardson Sept. 11, 1951 FOREIGN PATENTS 200,802 Switzerland Jan. 16, 1939 

